305 crank, strokable?
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Member
Joined: Nov 2006
Posts: 217
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From: alberta,canada
Car: 91 formula ws6
Engine: 1 peice roller scat 383 4 BOLT!!
Transmission: 5 speed
Axle/Gears: 3.42
305 crank, strokable?
what kind of crank can i jam in my 305, 1 peice seal?
is a 350 one usable?
is a 350 one usable?
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Joined: May 2002
Posts: 845
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From: Northern California, Redding
Car: Red 1987 IROC Convertible
Engine: 305 LB9 TPI
Transmission: T5 5-Speed
Axle/Gears: 9-Bolt 3.45
Re: 305 crank, strokable?
I think that you can use one from a 400, (to get to a 334) but very few people on this board would advise you to do that. It just results in a longer stroke on a cylinder that already has too small of a bore. You just can't put big enough valves in a 305 to get a stroker to perform well.
Thread Starter
Member
Joined: Nov 2006
Posts: 217
Likes: 0
From: alberta,canada
Car: 91 formula ws6
Engine: 1 peice roller scat 383 4 BOLT!!
Transmission: 5 speed
Axle/Gears: 3.42
Re: 305 crank, strokable?
mine has a 1 peice rear main tho,, i thought you cant out 2 piece in a 1 peice??
Joined: Jul 1999
Posts: 10,950
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From: Orange, SoCal
Car: 1990 Pontiac Trans Am
Engine: 355 TPI siamesed runners
Transmission: Tremec T56
Axle/Gears: 12-Bolt 3.73
Re: 305 crank, strokable?
You can use a 2-piece seal crank with an adapter, but I wouldnt recommend it.
A 350 crank has the same stroke as a 305 crank, so you would gain nothing.
A 350 crank has the same stroke as a 305 crank, so you would gain nothing.
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Joined: Jun 2004
Posts: 184
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From: PA
Car: 94 9c1 Caprice
Engine: LT1 (3-fity)
Transmission: 4L60E reBUILT
Axle/Gears: 3:08 POSI (out)
Re: 305 crank, strokable?
The 305 and 350 are both 3.48 stroke.
If you have a bad 305 crank you can use a 350 or the other way around.
You may want to check the total weight of the crank it may need rebalanced.
If you have a bad 305 crank you can use a 350 or the other way around.
You may want to check the total weight of the crank it may need rebalanced.
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Posts: 10,763
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
Re: 305 crank, strokable?
You can probably buy an aftermarket 3.75" stroke crank with a 1pc RMS. As Mnorton mentioned, it's a bad idea in a 305, too small of a bore to get enough valve to get the motor to breathe enough to be worthwhile.
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